STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs)
International audience Introduction: Ultracarbonaceous Antarctic Micrometeorites (UCAMMS) are extraterrestrial dust particles containing large amount of carbonaceous material with elevated D/H ratios [1] and high N/C atomic ratio (up to 0.2)[2]. UCAMMS are rare (~ 1% of the particles in the Concordi...
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Language: | English |
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HAL CCSD
2020
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Online Access: | https://hal.science/hal-03052469 https://hal.science/hal-03052469/document https://hal.science/hal-03052469/file/Guerin_2020_UCAMMs_STXM-XANES_TEM_phyllo-LPSC.pdf |
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Open Polar |
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Université Polytechnique Hauts-de-France: HAL |
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language |
English |
topic |
[SDU]Sciences of the Universe [physics] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
spellingShingle |
[SDU]Sciences of the Universe [physics] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] Guérin, B Engrand, C Le Guillou, C Leroux, H Duprat, J Dartois, E Bernard, S Ben- Zerara, K Rojas, J Godard, M Delauche, L Troadec, David STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
description |
International audience Introduction: Ultracarbonaceous Antarctic Micrometeorites (UCAMMS) are extraterrestrial dust particles containing large amount of carbonaceous material with elevated D/H ratios [1] and high N/C atomic ratio (up to 0.2)[2]. UCAMMS are rare (~ 1% of the particles in the Concordia meteorite collection) but they have been identified in several collection of interplanetary dust [3, 4]. They are most probably of cometary origin. Here, we studied the association of organic matter and minerals by scanning transmission X-ray microscopy (STXM-XANES) coupled with scanning transmission electronic microscopy (TEM/STEM). Samples and Methods: The UCAMMs studied here were collected in the Antarctic snow, close to the Concordia station at Dome C [3]. FIB sections of 8 UCAMMs (DC06-18, DC06-41, DC06-43, DC06-65, DC06-308, DC06-139, DC16-30, DC16-309) were analyzed using synchrotron based STXM-XANES at the carbon, nitrogen and oxygen K-edges. The FIB sections were subsequently analyzed with transmission electron microscopy (TEM/STEM) using a FEI Tecnai G2 20 and a FEI TITAN Themis 300 [5, 6]. Peak identification of STXM-XANES spectra are based on [7]. XANES spectra are processed and quantified using Quantorxs method [8] and quantification of STEM EDS spectra has been realized using Hyperspy software [9]. Here, we mainly present results obtained on two recently identified UCAMMs (DC06-308 and DC16-309) and compare them with previous observations [1, 5, 6]. Results: The STXM-XANES analysis reveals 3 types of organic matter (OM) characterized by different carbon speciation. Figure 1 shows type I OM in blue and type II OM in green, both having spectra close to that of chondritic insoluble organic matter (IOM). The main peaks of type I and II OMs are found around 284.8 eV (aromatic and olefinic groups (C=C)), 286.4 eV (ketone and phenol C=O) and 288.4 eV (carboxyl O=C-O). Type II OM exhibits similar functional groups as type I OM but the first peak position is shifted to 285 eV, indicating a stronger ... |
author2 |
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN) Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) Centrale de Micro Nano Fabrication - IEMN (CMNF - IEMN) Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) Renatech Network CMNF ANR-18-CE31-0011,COMETOR,Origine de la poussière cométaire(2018) |
format |
Conference Object |
author |
Guérin, B Engrand, C Le Guillou, C Leroux, H Duprat, J Dartois, E Bernard, S Ben- Zerara, K Rojas, J Godard, M Delauche, L Troadec, David |
author_facet |
Guérin, B Engrand, C Le Guillou, C Leroux, H Duprat, J Dartois, E Bernard, S Ben- Zerara, K Rojas, J Godard, M Delauche, L Troadec, David |
author_sort |
Guérin, B |
title |
STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) |
title_short |
STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) |
title_full |
STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) |
title_fullStr |
STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) |
title_full_unstemmed |
STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) |
title_sort |
stem and stxm-xanes analysis of fib sections of ultracarbonaceous antarctic micrometeorites (ucamms) |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03052469 https://hal.science/hal-03052469/document https://hal.science/hal-03052469/file/Guerin_2020_UCAMMs_STXM-XANES_TEM_phyllo-LPSC.pdf |
op_coverage |
Houston, United States |
long_lat |
ENVELOPE(123.333,123.333,-75.100,-75.100) ENVELOPE(33.629,33.629,67.560,67.560) |
geographic |
Antarctic Concordia Station The Antarctic Titan |
geographic_facet |
Antarctic Concordia Station The Antarctic Titan |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Lunar and Planetary Science Conference https://hal.science/hal-03052469 Lunar and Planetary Science Conference, Mar 2020, Houston, United States. pp.2117 |
op_relation |
hal-03052469 https://hal.science/hal-03052469 https://hal.science/hal-03052469/document https://hal.science/hal-03052469/file/Guerin_2020_UCAMMs_STXM-XANES_TEM_phyllo-LPSC.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1798835076895604736 |
spelling |
ftunivphautsdefr:oai:HAL:hal-03052469v1 2024-05-12T07:55:19+00:00 STEM and STXM-XANES analysis of FIB sections of Ultracarbonaceous Antarctic Micrometeorites (UCAMMs) Guérin, B Engrand, C Le Guillou, C Leroux, H Duprat, J Dartois, E Bernard, S Ben- Zerara, K Rojas, J Godard, M Delauche, L Troadec, David Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN) Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) Centrale de Micro Nano Fabrication - IEMN (CMNF - IEMN) Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) Renatech Network CMNF ANR-18-CE31-0011,COMETOR,Origine de la poussière cométaire(2018) Houston, United States 2020-03-18 https://hal.science/hal-03052469 https://hal.science/hal-03052469/document https://hal.science/hal-03052469/file/Guerin_2020_UCAMMs_STXM-XANES_TEM_phyllo-LPSC.pdf en eng HAL CCSD hal-03052469 https://hal.science/hal-03052469 https://hal.science/hal-03052469/document https://hal.science/hal-03052469/file/Guerin_2020_UCAMMs_STXM-XANES_TEM_phyllo-LPSC.pdf info:eu-repo/semantics/OpenAccess Lunar and Planetary Science Conference https://hal.science/hal-03052469 Lunar and Planetary Science Conference, Mar 2020, Houston, United States. pp.2117 [SDU]Sciences of the Universe [physics] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] info:eu-repo/semantics/conferenceObject Conference papers 2020 ftunivphautsdefr 2024-04-12T00:11:18Z International audience Introduction: Ultracarbonaceous Antarctic Micrometeorites (UCAMMS) are extraterrestrial dust particles containing large amount of carbonaceous material with elevated D/H ratios [1] and high N/C atomic ratio (up to 0.2)[2]. UCAMMS are rare (~ 1% of the particles in the Concordia meteorite collection) but they have been identified in several collection of interplanetary dust [3, 4]. They are most probably of cometary origin. Here, we studied the association of organic matter and minerals by scanning transmission X-ray microscopy (STXM-XANES) coupled with scanning transmission electronic microscopy (TEM/STEM). Samples and Methods: The UCAMMs studied here were collected in the Antarctic snow, close to the Concordia station at Dome C [3]. FIB sections of 8 UCAMMs (DC06-18, DC06-41, DC06-43, DC06-65, DC06-308, DC06-139, DC16-30, DC16-309) were analyzed using synchrotron based STXM-XANES at the carbon, nitrogen and oxygen K-edges. The FIB sections were subsequently analyzed with transmission electron microscopy (TEM/STEM) using a FEI Tecnai G2 20 and a FEI TITAN Themis 300 [5, 6]. Peak identification of STXM-XANES spectra are based on [7]. XANES spectra are processed and quantified using Quantorxs method [8] and quantification of STEM EDS spectra has been realized using Hyperspy software [9]. Here, we mainly present results obtained on two recently identified UCAMMs (DC06-308 and DC16-309) and compare them with previous observations [1, 5, 6]. Results: The STXM-XANES analysis reveals 3 types of organic matter (OM) characterized by different carbon speciation. Figure 1 shows type I OM in blue and type II OM in green, both having spectra close to that of chondritic insoluble organic matter (IOM). The main peaks of type I and II OMs are found around 284.8 eV (aromatic and olefinic groups (C=C)), 286.4 eV (ketone and phenol C=O) and 288.4 eV (carboxyl O=C-O). Type II OM exhibits similar functional groups as type I OM but the first peak position is shifted to 285 eV, indicating a stronger ... Conference Object Antarc* Antarctic Université Polytechnique Hauts-de-France: HAL Antarctic Concordia Station ENVELOPE(123.333,123.333,-75.100,-75.100) The Antarctic Titan ENVELOPE(33.629,33.629,67.560,67.560) |